String与InputStream相互转换
1.String to InputStream
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String str = "String与InputStream相互转换";
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InputStream ? in_nocode?? = ? new ? ByteArrayInputStream(str.getBytes());??
InputStream ? in_withcode?? = ? new ? ByteArrayInputStream(str.getBytes("UTF-8"));??
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2.InputStream to String
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??? 这里提供几个方法。
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方法1：
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??public?String?convertStreamToString(InputStream?is)?{ ??
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???BufferedReader?reader?=?new?BufferedReader(new?InputStreamReader(is)); ??
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????????StringBuilder?sb?=?new?StringBuilder(); ??
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????????String?line?=?null; ??
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????????try?{ ??
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????????????while?((line?=?reader.readLine())?!=?null)?{ ??
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????????????????sb.append(line?+?"/n"); ??
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????????????} ??
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????????}?catch?(IOException?e)?{ ??
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????????????e.printStackTrace(); ??
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????????}?finally?{ ??
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????????????try?{ ??
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????????????????is.close(); ??
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????????????}?catch?(IOException?e)?{ ??
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????????????????e.printStackTrace(); ??
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????????????} ??
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????????} ??
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????????return?sb.toString(); ??
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????} ??
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方法2：
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public?? String?? inputStream2String?? (InputStream?? in)?? throws?? IOException?? {
??????? StringBuffer?? out?? =?? new?? StringBuffer();
??????? byte[]?? b?? =?? new?? byte[4096];
??????? for?? (int?? n;?? (n?? =?? in.read(b))?? !=?? -1;)?? {
??????????????? out.append(new?? String(b,?? 0,?? n));
??????? }
??????? return?? out.toString();
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方法3：
public?? static?? String?? inputStream2String(InputStream?? is)?? throws?? IOException{
??????? ByteArrayOutputStream?? baos?? =?? new?? ByteArrayOutputStream();
??????? int?? i=-1;
??????? while((i=is.read())!=-1){
??????? baos.write(i);
??????? }
?????? return?? baos.toString();
}
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